Well pumping apparatus



Apri; 14, 1942. Rl PLO-ns l 279,379

WELL PUMPING APPARATUS Fild oci. 9; 19:40

INVENTOR.-

Rutand P1 ufff.'

Patented Apr. 14, 1942 UNITED STATES PATENT OFFICE 2,279,379 WELL PUMPING APPARATUS Roland Plotts, Carlyle, lll.

Application October 9, 1940, Serial No. 360,506

8 Claims. (Cl. 711-593) Other objects and advantages of this invention will be apparent during the course of the following detailed description.

In the accompanying drawing, forming a part of the specification, and wherein similar reference characters designate corresponding parts throughout the several views,

Figure 1 is a plan view of the improved portion of pumping apparatus such as is used in multiple pull line pumping equipment.

Figure 2 is a side elevation of the improved portion of the pumping equipment. i

Figure 3 is a view similar to Figure 2, but partly in section, showing the power line disconnected from the pull rod section of the pumping equipment.

Figures 4 and 5 are cross sectional views taken substantially on their respective section lines shown in Figure 2 of the drawing.

In the accompanying drawing, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the letter A may generally designate the power line of pumping equipment, connected detachably to a pull line B by means of safety connecting means C. Means D is provided to support the power line A adjacent the connection C. An improved safety operating mechanism E for the safety connecting means C.

The power line A leads oli" from any approved power source, such as a pumping pendulum, Walking beam, or eccentric power unit. It terminates adjacent the safety connecting means C in a hook shaped section I5 having a detachable connection I6 with the power line A. To this connection I6 is also connected a traveling block I1 which slides rectilinearly in thev supporting means D. The hook section I5, as is usual, terminates in a hook end 20.

Referring to the supporting means D, the same is intended to slidably support the pump line A adjacent to the safety connection C, so the section I5 will have a true rectilinear sliding movement; the connection I6 forming an axis which will permit of some side play of the power line A.

The support D further includes a base 25 having relatively spaced side rails 26 and 2l con- `nected in spaced relation thereabove by means of U-shaped bracket portions 28. 'Ihey are spaced to provide a channel 29 in which the power line section I 5 slides and is guided. The travel block II slides in the space between the base 28 and the rail sections 2B and 2'I. Posts 35 and 36 areprovided at the endsv of the base 28 for supporting the latter by angles 31.

Referring to the safety connecting means C, the same includes a hook-shaped connecting link 50, pivoted at 5I to the pull line, as by means of a yoke 52. The link 50 is referred to as hookshaped, but it is hook-shaped only in the sense that it provides a diagonal recess or opening 53 shaped to receive a detent loop 55 inorder to 'hold the pull-rod or line B inoperative, in the position shown in Figure 3. v

The safety connecting means C further includes a loop member which is in the form of an elongated loop provided with an opening 6I longitudinally therealong in which the hook end 20 of the power line may ride, as when the pull line B is held inoperative by the safety hook-off or detent 55. Normally, the hook end 20 engages the end of the loop 60, as shown in Figures 1 and 2, when the hook line is in full operating position. The loop member B0 is pivoted to the free end of the link 5I] at 64.

The hook-off detent 55 is of elongated loopshaped formation, providing side legs, `the free ends of which are pivoted at 10 to the top of the post 36, `and the bight end of which is adapted to hook in the recess 53 of the connecting link 50 in order to hook-off the pull rod line from the power line. j

It must be borne in mind that the pull rod section B and the parts of the safetyconnecting means vC are rather heavy. Releasable safety `connections have heretofore been provided. Be-

cause of their weight and complicated nature they have been difficult to operate. them are extremely dangerous to those whose duty it is to hook them on and off, asis well known to those skilled in the art to which this invention relates. To obviate such difficulties I have provided the improved supporting and operating means E. It serves a number of functions, namely, that of supporting the hook-off detent I5 in position for ready attachment, as shown in Figure 2; that of permitting lifting of the detent 55 into a hook-off position with respect to the connecting link 50; and that of liftingthe loop 60 from inactive position to a position where it kmay hook onto the power line, when it is desired Several of 4 Ascope of the' claims.

to place the pumping linel in well pumping operation.

The safety operating mechanism E includes a bell crank operatinglever 80, releasably pivoted in a socket provided at the upper end of a supporting post 8|, as by cross portion 82 (shown in Figure of the drawing) which connects the handle portion 84 andthey operating lever portions 85 and 86. The operating lever portions 85 and 86 extendv at both sides of the pivot axis of the bell crank lever. The'portion 85 projects in the direction of the pull line'B, and parallel therewith, and the portion 86 projects in the direction of the power line A. The extreme end 81 of the portion 86 is acutely down-turnedat its free end and is provided with a lateral pinextension 9| shown best in Figure 1 of the drawing, which normally is in positionl to vengage beneath the detent loop 55 and assists in supporting loop 5 in horizontal position. It should be noted that the lever .portions 85 and 86 are in `thesame line and Y alongside and `irrparallel relation with the adjacent legfof the loop of vthe detent 55.

The -detent 55 at Aits Vfree .endisprovidedwith a `pinextension 92 which normally engages upon the free end of the lever portioni, so 4'that when the 'latter is moved'u'pw'ardly [it will lift the-,strap detent loop 55 into'po'sition to engage vin vthe hook end of the link 5D to throw yoff the -power line from the pull line. Y

In operation the power ,and pull linesv areconnected as shown in.Figure.2 .of the drawing. If it isdesired to disconnect thepull :linefrom the power line it is merely"necessaryr to move the handle 84 of the bell crank Ieverf forwardly in the direction' of the' power line, and this" will swing the bell crank lever end 85 upwardly, engaging the pin 92 and moVingthe detent 55into position for hooking .into the connecting link 50. ,'Power line Vsection I5`vx'fill :then move forwardly and release its hook end fromzthe strap loop 60. The latter will drop to the position shown in Figure 3 v,ofthe drawin'g;1its .pinend 100 engaging and restingfpon thetop of one ,of the legs of the detent'55, and it Ywill.be sup- Cal ported in the positionfshown'inFigureB. -When .the pin |00 upon the straploop and lift the loop at the forwar'de'ndof .the movement ofthe the hook link of said safety connection to hook off the pull line from the power line, and lever meansfor manually moving the detent into operating connection with said link of the safety connection and for also moving the loop of said safety connectionfrom an inoperative position into connected relation with the power line.

2. In well pumping equipment the combination of an power line, a hook section connected on a vertical pivot axisat the end of the power line, an elongated supportingstand, means upon said stand rand the pivot axis aforesaid positioning the power line and its hook section upon `said stand for rectilinear sliding therealong.

3. In wellpumping equipment the combination of arpower line, a hook section connected on a vertical pivot axis at the end of the power line, an elongated supporting stand, means upon said stand and the pivot axis aforesaid positioning the power line and its hook section upon said stand for rectilinear sliding therealcng, and a pivoted'hook-ofi 'detent connection associated with said Ystand in a fixed pivoted relation.

4. In pumpngapparatus .a power. linea,pull line, a hook-shaped link `pivoted vwith the pull line, a loop linkpivotedratthe free end `of .the hook link, a pivoted fdetent` loop pivoted ron .a xed axis for connection with the' hook ,linkto hook off the pull line from the pump.,linea.bell crank lever includingahandle portion ,andqopferating lever portionsextending to .bothf sides of the pivot axis of the-bell `crank lever, a pinextension upon the freeendof thedetent yresting upon the Atop of rone'of said leverportionsatone sideof the pivot axis ofthe handleA of the, bell crank lever so thatupon movemenmof thebell crank lever the detentmaybe moved into position for engaging the hooklink aforesaid-todisconnect the pull l.line from the power line, `and [a pin extension laterally .projectingfrom the loop link of said connectionin position [to be engaged by the otherlever portion of said bell crank` lever whereby the said loop may.,be .moveddnto `position to eiect a power connection of the power and pull lines. i*

5. In welLpumping equipment the combination of a power line,.apull line,.a safety connection between the powerandpull linesincludinga .part pivoted'to one. of .said `lines adaptedto lreleasably engage the other of saidlines, a movable ,detent adapted toreleasably hookontotherpull power'line andinto position 'to engagev in YtheV f `hook end 20 of the power linexQ'Ihe "detent loop is horizontally positioned in .readiness to safely disconnecttheY power:y and pulllineat all times due to .the .factthat pinl engagesvbe `neath the loop 55 at onerside-'of-the axisof the bell crank and the pinSZ rests on top of lever at the other side of 'said,axis,'as'shown.in Figure 2 ofthe drawing. 1

Various changes' the' shape, size andarrangement of parts may be madeJinithe form of invention herein shown'fan'd described, without departing from` the jspirit of -the invention or `of a power line, a pull line,'a releasable'fsafety connection between the power `and lpull lines including a hook line vpivotally connectedyvith the pull lineand a loop pivotallyY connected with the -vand power lines,A a ,movable detent for engaging T75 'pivotally connected to one of said .lines .and

adapted to 44releasably engage the other .of lsaid lines', a movable ,detenaadapteditol releasably `engage the `pullline to holdl the latten inoperative, a lpivotedhandle,` .and levers `connected 4.with the Ahandle forv movement iitherewith., and .in `.position to move'the'pivoted part .of saidsafety `connection intopperating"connectionof the powerand pull lines and to move -thedetent .into an,opera tive hook .off position withthepult line.

y 7. Inwell ,pumpingsequipmennfthe combina- Ation,oi'` a Ipower.line,.'a .pull 2line,` ag hook section connectedona vertical pivlcatga-xis,atthe` en d of the power Jline;@arbelongated V,supportine stand, meansauponsaid, stand and pivot axis aforesaid .positioning the apoweri lineaandtiitsnhook@ section 4123011 'Sad "Stand ffOr f rectilinear sliding Miereto effect a connection of said lines, a pivoted detent, an operating lever, means pivotally mounting the operating lever, said lever having an arm portion extending to one side of its pivot axis in position for operatively moving the detent into a hook 01T connection with one of said lines, and an arm portion on the lever extending to the opposite side of the lever pivot axis for operatively moving the said connection link from an inoperative position to an operative connection of said pull and power lines.

ROLAND PLOTTS. 

